Crying is one of the most recognizable human emotional signals. Tears appear when people experience grief, relief, joy, or deep stress. Because this response is so familiar, observers often assume ...

In mammals, social behavior and social status can substantially influence the survival, reproductive performance, and health of individuals. However, it is not yet fully understood how the translation ...

A new study shows macaque species with more tolerant social systems have larger brain regions linked to emotions and social signals.

Viral baby monkey’s new behavior sparks questions about imitation.

The observation of homosexual behaviors in animals has long raised questions about their origins and functions. A recent study, focused on primates, shows that these behaviors are not random but are ...

Cooperative behaviour and prosociality in nonhuman primates constitute a vital area of research that illuminates the evolutionary origins of complex sociality. Studies indicate that primates employ a ...

Adaptation and behavior in the primate fossil record / Callum F. Ross ... [et al.] -- Functional morphology and in vivo bone strain patterns in the craniofacial region of primates: beware of ...

A recent study into same-sex behavior in primates finds that social organization and ecological factors, including climatic conditions, influence this behavior. In gorilla groups, same-sex relations ...